Trucking profit calculator: what you keep

A trucking profit calculator answers one question: after fuel and the cost of running the truck, what does this load actually leave you? The math behind it is short. Profit per load = rate − fuel cost − (total miles × non-fuel cost per mile).

The rate on the load board is revenue, not profit. Fuel, the truck payment, insurance, maintenance, and your own pay all come out before anything is yours to keep. This walkthrough does the math by hand, so you know exactly what any calculator, including LoadMerit's free calculator, is doing with your numbers.

The three inputs that matter

First, the all-in rate from the rate con, including any fuel surcharge or accessorials that are actually in writing. If detention or a lumper is a verbal "we'll take care of you," it is not in the rate yet.

Second, total miles: loaded miles plus deadhead to the pickup. A hundred deadhead miles burn the same diesel as a hundred loaded ones. They just don't pay.

Third, your cost per mile, split into fuel and everything else. If you have not built that figure yet, start with true cost per mile — the profit math is only as honest as this one input.

Walk through one load

The $4.80 diesel price mirrors EIA's national average from mid-July 2026; swap in what you actually pay at the pump. The $0.70 is the non-fuel share of cost per mile: maintenance reserve, payment and insurance spread across miles, tolls.

Notice the gap between the two ways of reading this load. Per loaded mile it pays about $2.22, which sounds strong. The profit view says it leaves $562, about $0.56 per total mile, and less than that if your own wage was not inside the $0.70.

The costs that hide from a per-load view

Fixed costs are the usual blind spot. If your payment, insurance, and permits total $45,600 a year, that is about $125 for every calendar day, rolling or parked. A load that "profits" $100 but eats a full day actually put you $25 behind.

Cash-flow surprises hide too. Lumper fees usually get reimbursed, but you float the cash in the meantime. Detention often pays nothing unless it is written on the rate con. None of that shows up in a quick rate-minus-fuel estimate.

Profit per day beats profit per load

Two loads can both show a profit and still not be equal. The $562 load above that delivers in one day beats a $900-profit load that ties up two days, because $900 over two days is $450 a day. Slow docks, live unloads, and long waits at the shipper all tax the real number.

That is also why drop-and-hook freight at a slightly lower rate often wins. The hours it saves go straight into the next load.

Run the math before you call

By hand this is five minutes per load. A calculator makes it five seconds, which matters when you are comparing six loads before the good ones disappear. And profit is only half the decision: the profit math tells you what a load leaves, while your minimum acceptable rate tells you whether to take it, counter, or pass. Run both before you dial the broker.